I just purchased FB Strong and will be starting it in two days. I was looking through my calendar and saw the core workouts. Because of a lower back injury, most crunches and core exercises really hurt my back. I'm wondering if it would be ok to do a HIIT workout on these days instead of doing the core workouts? Has anyone added HIIT to the program or would that not be beneficial? Just wondering. Thanks in advance!
FB Strong - Core Days
I just purchased FB Strong and will be starting it in two days. I was looking through my calendar and saw the core workouts. Because of a lower back injury, most crunches and core exercises really hurt my back. I'm wondering if it would be ok to do a HIIT workout on these days instead of doing the core workouts? Has anyone added HIIT to the program or would that not be beneficial? Just wondering. Thanks in advance!